Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau

doi:10.1093/aob/mcac065

	Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau
	Jia, Hengfeng 1; Fang, Ouya ; Lyu, Lixin
	2022
发表期刊	ANNALS OF BOTANY
ISSN	0305-7364
卷号	130 期号:1 页码:85-95
摘要	Background and Aims Tree growth in plateau forests is critically limited by harsh climatic conditions. Many mathematical statistical methods have been used to identify the relationships between tree growth and climatic factors, but there is still uncertainty regarding the relative importance of these factors across different regions. We tested major climatic limits at 30 sites to provide insights into the main climatic limits for juniper trees (Juniperus tibetica Kom.) across the southern Tibetan Plateau. Methods We analysed the linear and non-linear relationships between tree growth and climatic factors using Pearson correlation statistics and a process-based forward Vaganov-Shashkin-Lite (VS-Lite) model, respectively. These relationships were used to identify the strength of the influence of different climatic factors throughout the species' growing season and to identify the main climatic factors limiting tree growth. Key Results Growth of juniper trees began in April and ended in October in the study area. The radial growth of juniper trees was limited by soil moisture throughout the summer (June-August) of the current year at 24 sampling sites and was limited by temperature at the other six sites on the southern Tibetan Plateau. Conclusions Soil moisture limited juniper growth at the majority of sites. Temperature in the current summer limited the growth of juniper trees at a few sampling sites in the western part of the study area. Local climate conditions may contribute to different limiting factors in the growth response of trees on the southern Tibetan Plateau. These findings may contribute to our understanding of divergent forest dynamics and to sustainable forest management under future climate scenarios.
关键词	Climatic limiting factors non-linear responses Tibetan Plateau tree-ring width VS-Lite model Juniperus tibetica Kom
学科领域	Plant Sciences
DOI	10.1093/aob/mcac065
收录类别	SCI
语种	英语
WOS关键词	TREE-RING WIDTH ; QINGHAI SPRUCE ; WHITE SPRUCE ; TEMPERATURE ; RESPONSES ; DROUGHT ; SOIL ; PRECIPITATION ; XYLOGENESIS ; CONIFERS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000814330500001
出版者	OXFORD UNIV PRESS
文献子类	Article
出版地	OXFORD
EISSN	1095-8290
资助机构	Second Tibetan Plateau Scientific Expedition and Research Program (STEP) [2019QZKK0301] ; National Natural Science Foundation of China (NSFC) [31870460, 31700412, 41771060]
作者邮箱	oyfang@ibcas.ac.cn
作品OA属性	Bronze, Green Published
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/28679
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jia, Hengfeng,Fang, Ouya,Lyu, Lixin. Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau[J]. ANNALS OF BOTANY,2022,130(1):85-95.
APA	Jia, Hengfeng,Fang, Ouya,&Lyu, Lixin.(2022).Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau.ANNALS OF BOTANY,130(1),85-95.
MLA	Jia, Hengfeng,et al."Non-linear modelling reveals a predominant moisture limit on juniper growth across the southern Tibetan Plateau".ANNALS OF BOTANY 130.1(2022):85-95.

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